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Help please , 20 points
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Apr 12, 2018
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Help please , 20 points
Mathematics
middle-school
Matcartmill
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7
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the first one 12b one
Roland Kofler
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Apr 13, 2018
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Roland Kofler
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5
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The top-left one because 3ba is the same as 3ab
Gianpi
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Apr 17, 2018
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Gianpi
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